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从几个方面对液压冲击夯做一个简单的应用分析

网址:http://www.sddhfjx.cn/   发布日期:2022-06-20 关注次数:
从使用方面分析:
From the aspect of use:
强夯机出租人员提醒,液压冲击夯是近几年在工程施工中应用较多的一种专业夯击压实设备,由承载机构、夯架、夯锤、下锤头、缓冲装置、液压系统、电子控制系统等组成,通过直接安装在装载机、挖掘机等工程机械上,直接借用挖掘机、装载机等机械的液压动力输出,无须配备其他动力源。
The lessor of the dynamic compaction machine reminded that the hydraulic impact compaction is a professional compaction equipment that has been widely used in engineering construction in recent years. It is composed of a bearing mechanism, a compaction frame, a compaction hammer, a lower hammer head, a buffer device, a hydraulic system, an electronic control system, etc. by directly installing it on the loader, excavator and other engineering machinery, it directly borrows the hydraulic power output of the excavator, loader and other machinery, and does not need to be equipped with other power sources.
从施工工法特点:
From the characteristics of construction method:
液压冲击夯使用了强夯技术的原理,并通过特殊设计以便进行特定深度地基的夯实处理,具有快速移动性,锤体落高可达1.2米,每分钟可夯击40次以上。根据锤重的不同,分为不同的型号,每次对地夯击能量不等,高可达108kN.m,影响深度为1到10米。夯击能量通过直接放在地面的下锤头传递给地基,避免了传统强夯设备作业时乱石飞溅和重锤坠落的危险。
The hydraulic impact rammer uses the principle of dynamic compaction technology and is specially designed to tamp the foundation at a specific depth. It has fast mobility. The drop height of the hammer can reach 1.2m, and it can be tamped more than 40 times per minute. The hammer is divided into different models according to the weight of the hammer. The energy of each compaction is different, and the height can reach 108kn m. The depth of influence is 1 to 10 meters. The tamping energy is transmitted to the foundation through the lower hammer head directly placed on the ground, which avoids the risk of stone splashing and heavy hammer falling during the operation of traditional dynamic compaction equipment.
强夯机出租
从工作原理方面:
In terms of working principle:
液压冲击夯对土体的压实方法可称为“动力压实法”,简称“动压法”。动力指动态力,变力。动力压实技术是区别于静力压实、振动压实、冲击压实、夯实等传统压实技术的新技术。动力压实是在静力(重力)压实的基础上,施加更大的动态力提高压实效果;振动压实是利用振动效应增强静力碾压的效果;
The compaction method of hydraulic impact rammer for soil mass can be called "dynamic compaction method" for short. Power means dynamic force, variable force. Dynamic compaction technology is a new technology which is different from static compaction, vibration compaction, impact compaction, compaction and other traditional compaction technologies. Dynamic compaction is to apply greater dynamic force to improve the compaction effect on the basis of static (gravity) compaction; Vibratory compaction is the use of vibration effect to enhance the effect of static compaction;
从压实方面看:
From the aspect of compaction:
强夯机出租人员认为冲击压实是高频率交替的夯击与变力(静力与变力的合力,仍属变力)碾压;夯实是锤体以大速度直接击打地面,具有冲击大、衰减快的典型特征。动力压实是一种介于冲击压实变力碾压段与夯实之间的压实方法。
The lessor of dynamic compaction machine thinks that impact compaction is high-frequency alternating compaction and variable force (the resultant force of static force and variable force is still variable force) rolling; Tamping is a typical feature of large impact and fast attenuation when the hammer directly hits the ground at a high speed. Dynamic compaction is a compaction method between impact compaction and variable force compaction and compaction.
动力压实与冲击压实碾压段均利用变力和重力的合力压缩土体,但前者变力与重力之比相当大,后者相对较小。动力压实与夯实均具有冲击,但前者是从静态加速,冲击力的峰值小得多但持续时间长,后者是以大速度冲击地面,冲击力的峰值大得多但衰减快。
Both dynamic compaction and impact compaction use the resultant force of variable force and gravity to compress the soil, but the ratio of variable force to gravity is quite large in the former and relatively small in the latter. Both dynamic compaction and compaction have impact, but the former accelerates from the static state, and the peak value of impact force is much smaller but lasts a long time, while the latter impacts the ground at a high speed, and the peak value of impact force is much larger but decays quickly.
若用夯实法补强碾压达标桥台背,锤体对土体的强力剪切破坏了土体结构;锤体正面高速压缩土体的同时,向周边高速挤土,产生强烈的剪切波,破坏力大。
If the compaction method is used to reinforce and roll the abutment back up to the standard, the strong shear of the hammer on the soil will destroy the soil structure; While the front face of the hammer compresses the soil at a high speed, it also compresses the soil at a high speed to the periphery, resulting in strong shear wave and large destructive force.
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